99+x-120=200

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Solution for 99+x-120=200 equation: 


Simplifying
99 + x + -120 = 200

Reorder the terms:
99 + -120 + x = 200

Combine like terms: 99 + -120 = -21
-21 + x = 200

Solving
-21 + x = 200

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '21' to each side of the equation.
-21 + 21 + x = 200 + 21

Combine like terms: -21 + 21 = 0
0 + x = 200 + 21
x = 200 + 21

Combine like terms: 200 + 21 = 221
x = 221

Simplifying
x = 221

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